CONTRACT LIABILITIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Mar. 31, 2021
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract liabilities	$ 4,928	$ 7,205
Percentage of contract liabilities recorded to net sales	25.00%
NobelClad
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract liabilities	$ 4,450	6,845
DynaEnergetics
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Contract liabilities	$ 478	$ 360